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Date: Fri, 22 Feb 2019 07:26:52 +1100
From: Stephen Rothwell <>
To: Kees Cook <>
Cc: "Tobin C. Harding" <>, Jann Horn <>, "Tobin
 C. Harding" <>, Shuah Khan <>, Alexander
 Shishkin <>, Greg Kroah-Hartman
 <>, Andy Shevchenko
 <>, Kernel Hardening
 <>, kernel list
 <>, Andy Lutomirski <>,
 Rasmus Villemoes <>, Daniel Micay
 <>, Arnd Bergmann <>, Miguel Ojeda
 <>, "Gustavo A. R. Silva"
Subject: Re: [PATCH 5/6] lib: Fix function documentation for

Hi Kees,

On Wed, 20 Feb 2019 22:02:32 -0800 Kees Cook <> wrote:
> What I can't quite figure out yet is how to find a way for sfr to flag
> newly added users of strcpy, strncpy, and strlcpy. We might need to
> bring back __deprecated, but hide it behind a W=linux-next flag or
> something crazy. Stephen, in your builds you're already injecting
> -Wimplicit-fallthrough: do you do W=1 or anything like that? If not, I
> think we need some W= setting for your linux-next builds that generate
> the maintainer-nag warnings...

I just have a set of compiler flags that my build scripts explicitly
enable by setting KCFLAGS.

Stephen Rothwell

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